truce

n. armistice, cease fire; relief from trouble

A ceasefire (or truce) is a temporary stoppage of a war or any armed conflict, where each side of the conflict agrees with the other to suspend aggressive actions. Ceasefires may be declared as part of a formal treaty, but they have also been called as part of an informal understanding between opposing forces.
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Noun
1. a state of peace agreed to between opponents so they can discuss peace terms
(synonym) armistice, cease-fire
(hypernym) peace

adj. grim, cruel, fierce, heartless

(n.)
Hence, intermission of action, pain, or contest; temporary cessation; short quiet.
  

(n.)
A suspension of arms by agreement of the commanders of opposing forces; a temporary cessation of hostilities, for negotiation or other purpose; an armistice.